منابع مشابه
Scissors for autolysosome tubules.
Autophagic lysosome reformation (ALR) is a cellular process in which lysosomes are reformed through scission of protolysosomes from tubular structures extruded from autolysosomes. Despite recent progress, the molecular mechanism of ALR is far from clear. A paper in this issue of The EMBO Journal has identified lysosome-localized PI(3)P, which is generated by the VPS34–UVRAG complex in an mTOR-d...
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THE problem of the perfect cataract section and how it should be made is prominent in the minds of ophthalmic surgeons. We are all aware that the success of a lens extraction is substantially dependent upon the accuracy of the section, and there are few of us who cannot recall tragedies or near-tragedies resulting from the improper opening of the eye. With this in mind, and in spite of average ...
متن کاملLaser scissors and tweezers.
In summary, we described the use of laser scissors and tweezers from three perspectives: (a) the historical background from which these two techniques evolved, (b) an understanding and lack of understanding of the mechanisms of interaction with the biological systems, and (c) the applications of the scissors and tweezers alone and in combination. As the technology improves and we gain a better ...
متن کاملVisualizing Scissors Congruence
Consider two simple polygons with equal area. The Wallace–Bolyai–Gerwien theorem states that these polygons are scissors congruent, that is, they can be dissected into finitely many congruent polygonal pieces. We present an interactive application that visualizes this constructive proof. 1998 ACM Subject Classification I.3.5 [Computational Geometry and Object Modelling] Geometric Algorithms, la...
متن کاملScissors modes: The first overtone
Scissors modes were predicted in the framework of the two-rotor model. This model has an intrinsic harmonic spectrum, so that the level above the scissors mode, the first overtone, has excitation energy twice that of the scissors mode. Because the latter is of the order of 3 MeV in the rare-earth region, the energy of the overtone is below threshold for nucleon emission, and its width should re...
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ژورنال
عنوان ژورنال: The Lancet
سال: 1892
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(02)05152-8